title: Comparison of techniques for transdiaphragmatic thoracic drainage after diaphragmatic defect closure in dogs: a cadaveric study.
abstract: Four thoracic evacuation techniques for pneumothorax elimination after diaphragmatic defect closure were compared in 40 canine cadavers. After creating a defect in the left side of the diaphragm, thoracic drainage was performed by thoracostomy tube insertion through the defect and a small (DD-SP) or large (DD-LP) puncture created in the caudal mediastinum, or through both the diaphragmatic defect and intact contralateral diaphragm with a small (DI-SP) or large (DI-LP) puncture in made in the caudal mediastinum. Differences in intrapleural pressure (IPP) between the right and left hemithoraxes after air evacuation along with differences in IPP before making a defect and after air evacuation in each hemithorax were calculated. A difference (p ≤ 0.0011) in IPP between the left and right hemithoraxes after air evacuation as well as before making a defect and after air evacuation in the right hemithorax was detected for the DD-SP group. No significant differences (p ≥ 0.0835) were observed for the DI-LP, DD-LP, or DI-SP groups. Creation of a large mediastinal puncture or thoracic evacuation through both a diaphragmatic defect and intact contralateral diaphragm can facilitate proper pneumothorax elimination bilaterally after diaphragmatic defect closure in dogs with a small puncture in the caudal mediastinum.
authors.affiliation: Department of Veterinary Surgery, College of Veterinary Medicine and the Veterinary Science Research Institute, Konkuk University, Seoul 143-701, Korea.
authors.forename: Hun-Young
authors.initials: HY
authors.lastname: Yoon
authors.forename: F A
authors.initials: FA
authors.lastname: Mann
authors.forename: Suhwon
authors.initials: S
authors.lastname: Lee
authors.forename: Soon-wuk
authors.initials: SW
authors.lastname: Jeong
mesh_terms: D000818:Animals; D002102:Cadaver; D015505:Chest Tubes / Q000662:veterinary; D003964:Diaphragm / Q000601:surgery*; D004283:Dog Diseases / Q000601:surgery*; D004285:Dogs; D008482:Mediastinum / Q000601:surgery*; D011030:Pneumothorax / Q000601:surgery / Q000662:veterinary*; D013907:Thoracostomy / Q000295:instrumentation / Q000379:methods* / Q000662:veterinary
keywords: diaphragmatic rupture; dog cadavers; pneumothorax evacuation